Tisch
PTFE Syringe Filter, 0.8 um, 13mm, Nonsterile, 100/Pk SKU: SF18321

Polytetrafluoroethylene (PTFE) Syringe Filters - SF18321

Featuring hydrophobic PTFE membrane technology with 0.8µm pore size for efficient prefiltration and coarse particle removal from aggressive solvent systems. Compact 13mm diameter filters deliver excellent 20ml flow rates while preserving precious samples with just 10µl holdup volume. Polypropylene housing construction withstands pressures up to 87psi, ensuring reliable performance across demanding applications.

Key Polytetrafluoroethylene (PTFE) Membrane Characteristics

• Hydrophobic membrane design effectively prefilters organic solvents, acids, and bases without chemical interaction
• Coarse 0.8µm pore size removes particles, precipitates, and cellular debris from limited sample volumes
• Outstanding chemical resistance from strong carbon-fluorine bonds maintains stability in harsh solvent systems
• Membrane thickness of 80-140µm optimizes flow characteristics for rapid processing of small volumes
• Autoclavable at 121°C for 30 minutes or gamma sterilizable at 25kGy, ensuring contamination-free operation

Key Construction Characteristics

• Polypropylene housing provides excellent chemical compatibility with organic and inorganic solvents
• Small 13mm diameter with 1.09cm² filtration area, ideal for precious samples and microscale applications
• Ultra-low holdup volume of 10µl maximizes recovery of expensive or irreplaceable analytical samples
• Luer-Lok/Luer Slip dual connection design accommodates various syringe types and volumes

SF18321 filters maximize your small-volume sample recovery with an ultra-low 10µl holdup volume, preserving precious materials while maintaining excellent flow characteristics. Operating pressure up to 87psi ensures dependable performance across diverse applications while your samples remain stable at temperatures up to 60°C. Bubble point verification at 4.35psi using absolute ethyl alcohol confirms consistent pore structure for reproducible prefiltration results.

For more information about chemical and material compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

4.35(absolute ethyl alcohol ）

Connection Type

Luer-Lok/ Luer Slip

Construction

PP

Diameter

13mm

Filtration Area

1.09cm²

Flow Rate

20ml

Holdup Volume

10μL

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

87psi

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

80-140μm

Pack Count

100

Pore Size (µm)

0.8

Sterility

NonSterile

Sterilization

Autoclave 121°C for 30min/ Gamma 25kGy

Volume Throughput (ml)

10ml

Wetability

Hydrophobic

• Small-Volume Prefiltration - Removes coarse particles from precious samples, protecting expensive downstream filters
• Cell Culture Media Clarification - Eliminates cellular debris from culture supernatants before fine filtration
• HPLC Sample Preparation - Prevents column blockage by removing larger particulates from injection samples
• Environmental Extract Processing - Clarifies organic extracts from soil and water samples for analytical testing
• Biological Sample Processing - Prefilters cell lysates and tissue homogenates, removing large cellular fragments
• Analytical Guard Filtration - Protects sensitive instrumentation from particulate damage in routine QC testing